Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Schedule of Changes in Allowance for Doubtful Accounts

The following table presents the changes in the allowance for doubtful accounts (in thousands):

	Six Months Ended June 30, 2021		Year Ended December 31, 2020		Six Months Ended June 30, 2020
Balance, beginning of period	$	12,711	$	9,049	$	9,049
Add: provision for doubtful accounts	3,703		10,515		5,957
Add: adoption of ASC 326	—		461		461
Less: write-offs, net of recoveries and other adjustments	(4,491)		(7,314)		(4,202)
Balance, end of period	$	11,923	$	12,711	$	11,265

Schedule of Changes in Contractual Allowance

The following table presents the changes in the contractual allowance (in thousands):

	Six Months Ended June 30, 2021		Year Ended December 31, 2020		Six Months Ended June 30, 2020
Balance, beginning of period	$	21,281	$	15,433	$	15,433
Add: provision for contractual allowances	10,477		20,916		7,567
Less: realized contractual adjustments	(6,450)		(15,068)		(7,245)
Balance, end of period	$	25,308	$	21,281	$	15,755

Disaggregated Revenue by Payor Type and Major Service

Disaggregated revenue by payor type and major service line for three and six months ended June 30, 2021 and June 30, 2020 were as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Contracted third-party payors	$	49,633	$	26,544	$	96,225	$	58,254
Non-contracted third-party payors	6,547		2,868		11,825		6,244
Centers for Medicare & Medicaid	10,989		13,718		21,166		31,034
Healthcare Institutions	14,109		7,748		26,373		18,881
Total	$	81,278	$	50,878	$	155,589	$	114,413